feat(triage): skip list selector when only one writable list exists

frontend/src/features/triage/TriageDeck.tsx

@@ -221,6 +221,9 @@ export const TriageDeck: React.FC<TriageDeckProps> = ({
   onDeckChange,
   onFocusCapture,
 }) => {
+  const writableLists = lists.filter((l) => l.isOwner || l.role !== 'viewer');
+  const singleWritableList = writableLists.length === 1 ? writableLists[0] : null;
+
   const [cards, setCards] = useState<Thought[]>(deck);
   const [lastTriaged, setLastTriaged] = useState<Thought | null>(null);
   const [showDateModal, setShowDateModal] = useState(false);
@@ -702,8 +705,8 @@ export const TriageDeck: React.FC<TriageDeckProps> = ({
             Quick Dump direkt einer Liste zuordnen:
           </p>
           <div className="flex flex-wrap gap-1.5">
-            {lists.length > 0 ? (
-              lists.map((lst) => (
+            {writableLists.length > 0 ? (
+              writableLists.map((lst) => (
                 <button
                   key={lst.id}
                   onClick={() =>
@@ -746,17 +749,35 @@ export const TriageDeck: React.FC<TriageDeckProps> = ({
         </button>
 
         <button
+          disabled={writableLists.length === 0}
           onClick={() => {
+            if (singleWritableList) {
+              handleAction('keep', {
+                convertTo: 'list_item',
+                targetListId: singleWritableList.id,
+              });
+              return;
+            }
             setShowDateModal(false);
             setShowListSelector((prev) => !prev);
           }}
-          title="Auf eine geteilte Liste setzen"
+          title={
+            writableLists.length === 0
+              ? 'Keine Liste vorhanden'
+              : singleWritableList
+              ? `Auf ${singleWritableList.title}`
+              : 'Auf eine geteilte Liste setzen'
+          }
           className={`btn-action flex-1 h-9 px-3 justify-center whitespace-nowrap ${
-            showListSelector ? 'border-accent text-accent bg-accent-dim' : ''
+            writableLists.length === 0
+              ? 'opacity-40 cursor-not-allowed'
+              : showListSelector
+              ? 'border-accent text-accent bg-accent-dim'
+              : ''
           }`}
         >
           <ShoppingCart className="w-3.5 h-3.5 text-accent flex-shrink-0" />
-          <span>Auf Liste</span>
+          <span>{singleWritableList ? `Auf ${singleWritableList.title}` : 'Auf Liste'}</span>
         </button>
 
         <button
@@ -810,7 +831,7 @@ export const TriageDeck: React.FC<TriageDeckProps> = ({
               <SwipeableQueueItem
                 key={item.id}
                 item={item}
-                lists={lists}
+                lists={writableLists}
                 onBringToFront={handleBringToFront}
                 onOpenActionSheet={openActionSheetForCard}
                 onAction={handleAction}
@@ -854,13 +875,39 @@ export const TriageDeck: React.FC<TriageDeckProps> = ({
                 <div className="grid grid-cols-2 gap-2">
                   <button
                     type="button"
-                    onClick={() => setSheetMode('list')}
-                    className="min-h-[52px] px-3.5 py-2.5 rounded-xl bg-canvas hover:bg-panel-elevated border border-border text-left flex items-center gap-3 transition-colors cursor-pointer active:scale-98"
+                    disabled={writableLists.length === 0}
+                    onClick={() => {
+                      if (singleWritableList) {
+                        handleAction('keep', {
+                          convertTo: 'list_item',
+                          targetListId: singleWritableList.id,
+                          thoughtOverride: actionSheetCard,
+                        });
+                        return;
+                      }
+                      setSheetMode('list');
+                    }}
+                    title={
+                      writableLists.length === 0
+                        ? 'Keine Liste vorhanden'
+                        : singleWritableList
+                        ? `Auf ${singleWritableList.title}`
+                        : 'Auf Liste setzen'
+                    }
+                    className={`min-h-[52px] px-3.5 py-2.5 rounded-xl bg-canvas hover:bg-panel-elevated border border-border text-left flex items-center gap-3 transition-colors cursor-pointer active:scale-98 ${
+                      writableLists.length === 0 ? 'opacity-40 cursor-not-allowed' : ''
+                    }`}
                   >
                     <ShoppingCart className="w-5 h-5 text-accent flex-shrink-0" />
-                    <div>
+                    <div className="min-w-0">
                       <div className="text-sm font-semibold text-main">Auf Liste</div>
-                      <div className="text-[11px] text-muted">Einkauf / Geteilt</div>
+                      <div className="text-[11px] text-muted truncate">
+                        {writableLists.length === 0
+                          ? 'Keine Liste vorhanden'
+                          : singleWritableList
+                          ? singleWritableList.title
+                          : 'Einkauf / Geteilt'}
+                      </div>
                     </div>
                   </button>
 
@@ -999,8 +1046,8 @@ export const TriageDeck: React.FC<TriageDeckProps> = ({
                   Auf welche Liste soll dieser Punkt gesetzt werden?
                 </p>
                 <div className="max-h-60 overflow-y-auto space-y-1.5">
-                  {lists.length > 0 ? (
-                    lists.map((lst) => (
+                  {writableLists.length > 0 ? (
+                    writableLists.map((lst) => (
                       <button
                         key={lst.id}
                         type="button"